Novel Active Clamping Step-Down DC-DC Converter with Lower Voltage Stress

Chi Hsuan Hsu, Jun Min Jian, Jiann-Fuh Chen, Hsuan Liao

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, a novel ZVS buck converter with lower voltage stress based on coupled-inductor and active clamp techniques has been proposed. This converter utilizes coupled-inductor to obtain higher step-down ratio than the conventional buck converter. Moreover, the proposed converter can achieve ZVS (Zero-voltage switching) on both switches from full load to extra-light load. Therefore, the efficiency at light load does not subject to the switching losses, which leads to higher overall efficiency.The ZVS conditions and the design considerations of proposed converter are described. The ZVS region can cover the full load range, if the value of the magnetic inductance and resonant inductance have been properly chosen. Finally, based on controller TMS320F28035, a converter with 156 V input voltage, 48 V output voltage, and 200 W output power is developed to prove the feasibility of the proposed converter. The highest efficiency is around 96.8% when operating at 125 W.

Original languageEnglish
Title of host publication2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2653-2659
Number of pages7
ISBN (Electronic)9784886864055
DOIs
Publication statusPublished - 2018 Oct 22
Event8th International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018 - Niigata, Japan
Duration: 2018 May 202018 May 24

Publication series

Name2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018

Other

Other8th International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018
CountryJapan
CityNiigata
Period18-05-2018-05-24

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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  • Cite this

    Hsu, C. H., Jian, J. M., Chen, J-F., & Liao, H. (2018). Novel Active Clamping Step-Down DC-DC Converter with Lower Voltage Stress. In 2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018 (pp. 2653-2659). [8507610] (2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.23919/IPEC.2018.8507610